Import Gnus subtree

[packages] / xemacs-packages / gnus / lisp / gnus-vm.el

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+;;; gnus-vm.el --- vm interface for Gnus
+
+;; Copyright (C) 1994-2016 Free Software Foundation, Inc.
+
+;; Author: Per Persson <pp@gnu.ai.mit.edu>
+;; Keywords: news, mail
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Major contributors:
+;;     Christian Limpach <Christian.Limpach@nice.ch>
+;; Some code stolen from:
+;;     Rick Sladkey <jrs@world.std.com>
+
+;;; Code:
+
+(require 'sendmail)
+(require 'message)
+(require 'gnus)
+(require 'gnus-msg)
+
+(eval-when-compile
+  (require 'cl))
+
+(autoload 'vm-mode "vm")
+(autoload 'vm-save-message "vm")
+
+(defvar gnus-vm-inhibit-window-system nil
+  "Inhibit loading `win-vm' if using a window-system.
+Has to be set before gnus-vm is loaded.")
+
+(unless gnus-vm-inhibit-window-system
+  (ignore-errors
+    (when window-system
+      (require 'win-vm))))
+
+(defun gnus-vm-make-folder (&optional buffer)
+  (require 'vm)
+  (let ((article (or buffer (current-buffer)))
+       (tmp-folder (generate-new-buffer " *tmp-folder*"))
+       (start (point-min))
+       (end (point-max)))
+    (set-buffer tmp-folder)
+    (insert-buffer-substring article start end)
+    (goto-char (point-min))
+    (if (looking-at "^\\(From [^ ]+ \\).*$")
+       (replace-match (concat "\\1" (current-time-string)))
+      (insert "From " gnus-newsgroup-name " "
+             (current-time-string) "\n"))
+    (while (re-search-forward "\n\nFrom " nil t)
+      (replace-match "\n\n>From "))
+    ;; insert a newline, otherwise the last line gets lost
+    (goto-char (point-max))
+    (insert "\n")
+    (vm-mode)
+    tmp-folder))
+
+(defun gnus-summary-save-article-vm (&optional arg)
+  "Append the current article to a vm folder.
+If N is a positive number, save the N next articles.
+If N is a negative number, save the N previous articles.
+If N is nil and any articles have been marked with the process mark,
+save those articles instead."
+  (interactive "P")
+  (require 'gnus-art)
+  (let ((gnus-default-article-saver 'gnus-summary-save-in-vm))
+    (gnus-summary-save-article arg)))
+
+(defun gnus-summary-save-in-vm (&optional folder)
+  (interactive)
+  (require 'vm)
+  (setq folder
+       (gnus-read-save-file-name
+        "Save %s in VM folder:" folder
+        gnus-mail-save-name gnus-newsgroup-name
+        gnus-current-headers 'gnus-newsgroup-last-mail))
+  (gnus-eval-in-buffer-window gnus-original-article-buffer
+    (save-excursion
+      (save-restriction
+       (widen)
+       (let ((vm-folder (gnus-vm-make-folder)))
+         (vm-save-message folder)
+         (kill-buffer vm-folder))))))
+
+(provide 'gnus-vm)
+
+;;; gnus-vm.el ends here